多傳感器模糊數(shù)據(jù)融合在氣固流化床流型識(shí)別中的應(yīng)用.pdf

1、浙江大學(xué)碩士學(xué)位論文多傳感器模糊數(shù)據(jù)融合在氣固流化床流型識(shí)別中的應(yīng)用姓名：林萍申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：測(cè)試計(jì)量技術(shù)及儀器指導(dǎo)教師：王曉萍陳伯川20040301!墮奎蘭墮主蘭堡絲苧查堡壁矍豎塑墼塑壁全壟皇塑墮些盎墮型望型主塑壁旦ABSTRACTerassolidfiuidizedbedshavebeenassumedasimportantprocessunitsintheproductionprocessofchemicalandener

2、gyindustryInformationofflowregimeisneededinthemodelbuilding，design，researchanddevelopmentandoperationofgassolidfluidizedbed，whichisextremelyimportanttoimprovetheperformanceofthefluidizedbedandincreasetheheattransferratea

3、ndmasstransferrateSincepressurefluctuationtimeseriesingas—solidfluidizedbedswhichareeasymeasurebynormalpressureinstruments，containmanydynamicinformation，suchasparticlecharacteristics，operatingconditions，bubblebehaviors，p

4、ressurefluctuationtimeseriesareanalyzedtogettheinformationofflowregimesinthispaperThecomplexityofpressurefluctuationitsthereflectionofnonlineartwo—phasemovementinthefluidizedbedsSincecomplexityanalysishassimplebuteffecti

5、vealgorithmwithfewchangeableparameters，complexityparameters，includingalgorithmcomplexity(C(”))，fluctuatecomplexity(cJ)andShannonentropy(Entropy)，areadoptedtoindicatetheflowregimesinthegas—solidfluidizedbedsThethreecomple

6、xityparametersreflectthecomplexitydegreeinthefluidizedbedsfromdifferentaspectsandareabletoindicatesomeflowregimesindependentlyForthefirsttime，itisfoundthattheShannonentropyisabletoidentifybubbleandturbulentinthefluidized

7、bed，whicharedifficulttOidentifybytheformernonlinearparameters，suchaschaosparametersorC(n)orcfBasedonobservationandanalysisoflargeamountofexperimentalphenomena，regimedivisionismodifiedcombinedwithmorphologicalvariationoft

8、hechaosattractorandnumericvariationofthecomplexityparametersItisfiguredoutthattherearetransitionsbetweenthedeterministicflowregimesandtheadjacentflowregimesdonotvarysuddenlyfromthepreviousregimetOtheposteriorregimeThecom

9、plexityparametersvarycontinuouslyinthetransitionflowregimesItisfoundthatthereisanobviousdistinctionbetweenthestartingbubblestateandthefullybubblestateTransitionsarequantifiedwithafuzzyvariablenamed“membershipdegree”toind